Home / 129,954.28-195,009.18-119,378.92

Finding the Fourth Proportional to 129,954.28, 195,009.18 and 119,378.92

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Solution

The fourth proportional to 129,954.28, 195,009.18 and 119,378.92 is: 179,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,954.28 : 195,009.18 = 119,378.92 : x
  2. Step 2: Convert to fraction form
    129,954.28/195,009.18 = 119,378.92/x
  3. Step 3: Cross multiply
    129,954.28x = 195,009.18 × 119,378.92
  4. Step 4: Simplify right side
    129,954.28x = 23,279,985,298.49
  5. Step 5: Solve for x
    x = 23,279,985,298.49/129,954.28
  6. Step 6: Final answer
    x = 179,139.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.